Do you mean the "prefer not to say" box? I'd argue that it should exist for every non-mandatory selection for privacy's sake. If the question isn't necessary

Do you mean the "prefer not to say" box? I'd argue that it should exist for every non-mandatory selection for privacy's sake. If the question isn't necessary for some reason, it should probably be left off completely, IMO. But I'm assuming they're trying to get stats for something, and some people may be okay with that. But they should still make it obviously optional, which is what that option is for.